Sash-fastener.



J. R. WATTS. SASH FASTENER..

APPLICATION FILED NOV. 29, 1916 Patented Sept. 4, 1917.

FATFQN FFTQ.

JULIUS 1a. WATTS, or ATLANTA, GEORGIA;

sasH-Frisamvi'in.

Specification of Letters Patent.

Pat-area sat i, ieiv.

Applicationii1ed1\i0vember29, 1915. se1i in6.ie4,o99.

To all tohomit may concern: I

,Be it known that I, JULI s IR. VVA'rfrs, a citizen of the UnitedStates, and resident of Atlanta, in the county of Fulton and State ofGeorgia, have invented certain new and useful Improvements inSash-Fasteners, of which the following isa specification.

My invention relates to new and useful improvements in window sashfasteners and has particular reference to a fastener adapted to lockboth the lower and upper sash in any desired position. i V

The primary object of my invention is to provide a sashfastener of theclass described that will automatically lock the window and prevent thesame from being opened.

Another object of myinvention is to provide a sashfastener of the classdescribed having a latch associated therewith to retain the fastener.inja locl ced position The latch also having means associated therewithfor releasing the said latch and swinging the same away from the saidlocked position.

Another object of my invention is toprovidea sash fastener ofthe classdescribed which is simple in construction, that may be manufacturedatasmall costandthat may be easily applied to any window sash.

Other objects and advantages to be derived from the use of mv improvedwindow Y sash fastener will appear from the follow- Lee ing detaildescription and the claims, taken with an inspection of the accompanyingdrawings, in which Figure 1 is a front elevation of the preferred formof my invention applied to a window sash;

Fig. 2 is a top plan view of the same;

Fig. 3 is a longitudinal sectional view taken along the line 33 of Fig.2.

Fig. 4 is a front elevation of a modified form of my invention appliedto a window sash,

Fig. 5 is a top plan view of the same; and

Fig. 6 is a detail view of the base plate the sash being in section toshow the manner of applying the fasteniu g means.

eferring more particularly to the drawing, wherein similar characters ofreference designate like and corresponding parts throughout the variousviews, 1 designates the lower sash and 2 the upper sash of a window. Thewindow frame 3 is provided with the common form of flange 4: to preventthe accidental falling out of the window.

By actual experiment I have found that by attaching the fastenerdesignated F in its entirety on the top of the lower sash adj acent theouter edge thereof the best results may be obtained. A j j j Thepreferred form of my invention comprises a base plate 5 having a pair ofvertically extending, parallel ears 6 mounted in spaced relationthereon. The cam 7 is pivotally connected to the earsG by means of anarm 7 h.vinga hub 8 provided on the end thereof; The said hub 8 havingan opening in the center thereof to receive a shaft 9 extending throughthe said ears and pivotally connected to the hub. The hub 8 is providedwith a lip '10 for a purpose which will hereinafter be described. 3

The baseplate 5 is provided with a trans verse groove 11 extending'fromthe back edge of the plate to a point, adjacent the front edge betweenthe said ears. well 12 is provided at the end of the groove adjacent thefront edge. I I

"A latch member designated L in its en tirety has an arm 13 adapted tobe seated in the said groove. The arm 13 is provided with a heel 14seated in the well and forming a fulcrum forthe said latch. pawl15extends laterally of the arm 13 adjacent the end of the heel and isprovided with a seat 16 to engage the lip 10 of the cam member andretain the same in locked position. The opposite end of the arm 13 isprovided with an enlargement 17 which engages the arm 7 of the cam. Whenit is desired to release the cam from the locked position as shown inFig. 3, a slight pressure is exerted on the pawl away from the cam whichraises the enlargement 17 on the fulcrum 14. This operation releases thelip 10 from engagement with the pawl before the enlargement 1T swingsthe cam 7 upwardly and away from the locked position as shown, therebeing suflicicnt space in the well 12 to allow free play of the pawl.

The base plate 5 is provided with a plurality of slanting openingstherein to form a secure fastening means for the said plate inconjunction with the screws 18 as shown in Fig, 6, thus providing meansfor securely fastening the plate without splitting or otherwise marringthe sash.

In my modified form I provide a cam 19 pivotally connected to the ears 6as shown in Figs. 4 and 5. It being obvious that when the window sash islowered the cam will engage the opposite sash and prevent the same frombeing raised until the cam is disengaged by the raising of the same.

From the above description taken in connection with the accompanyingdrawings, it is thought that a clear and comprehensive understanding ofthe construction, operation and advantages of my sash fastener may behad, and while I have shown and described the invention as embodying aspecific structure, I desire that it be understood that such changes maybe made in said structure as do not depart from the spirit and scope ofthe invention as claimed.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is:--

l. A window fastener of the class described, including a base plate,ears formed on the said base plate in spaced relation, a cam pivotallyconnected to the said ears, the said base platehaving a groove formedtherein between the said ears terminating adjacent one edge thereof, thesaid groove having a well therein adjacent the said edge,

a latch member including an arm adapted to be seated in the said groove,a heel formed on one end of said arm for engagement in the said well, apawl extending upwardly from the said base, and a seat formed in one endof the pawl to retain the cam in a locked position.

2, A window fastener of the class described, including a base plate,vertical ears formed on the base plate in spaced relation, the saidplate having a groove formed there- Gopies of this patent may beobtained for in between the said ears terminating adjacent one edgethereof, a cam member, an arm extending from the cam member, the end ofthe said arm being pivctally connected to the said ears, a lip formed onthe free end of said arm, the said groove having a well therein adjacentthe said edge, a latch member including an arm adapted to be seated inthe said groove, a heel formed on one end of the arm and seated in thesaid well to form a fulcrum for the said latch, a pawl extendingvertically of the last mentioned arm adjacent the said heel, a seatformed on the vsaid pawl to engage'thesaid lipand' retainthe cam in alocked position, and an enlargement formed on the opposite endof thelast mentioned arm adapted to engage the first mentioned arm for apurpose specified.

3. A combination of a baseplate, vertical' ears formed on the base platein spaced rela therewith adapted to engage first mentioned 3 means, toretain-said cam in-locked position.

In testimony whereof, I aifix my signature hereto.

v JULIUS R. WATTS.

five cents each, by addressing the Commissioner of late nts, Washington,D. G.

